make disc headers read as section labels

The header was the same size as the track title, so render it uppercase
labelLarge with letter spacing to separate it from the tracks. Use the
outlined FiberSmartRecord icon.

app/src/main/kotlin/com/subtracks/ui/library/AlbumDetailScreen.kt

@@ -7,7 +7,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.FiberSmartRecord
+import androidx.compose.material.icons.outlined.FiberSmartRecord
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -18,6 +18,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.subtracks.data.model.Album
 import com.subtracks.data.model.CoverArtRef
@@ -151,16 +152,17 @@ private fun DiscHeader(text: String) {
         modifier = Modifier.padding(start = 8.dp, end = 16.dp, top = 20.dp, bottom = 4.dp),
     ) {
         Icon(
-            imageVector = Icons.Rounded.FiberSmartRecord,
+            imageVector = Icons.Outlined.FiberSmartRecord,
             contentDescription = null,
             tint = MaterialTheme.colorScheme.onSurfaceVariant,
             modifier = Modifier.size(20.dp),
         )
         Spacer(Modifier.width(8.dp))
         Text(
-            text = text,
-            style = MaterialTheme.typography.titleMedium,
+            text = text.uppercase(),
+            style = MaterialTheme.typography.labelLarge,
             fontWeight = FontWeight.SemiBold,
+            letterSpacing = 1.sp,
             color = MaterialTheme.colorScheme.onSurfaceVariant,
         )
     }

app/src/test/kotlin/com/subtracks/ui/AlbumDiscsTest.kt

@@ -111,7 +111,7 @@ class AlbumDiscsTest {
         composeRule.waitUntil(timeoutMillis = 5_000) { nodesWithText(songs.first().title) == 1 }
     }
 
-    private fun nodesWithText(text: String) = composeRule.onAllNodesWithText(text).fetchSemanticsNodes().size
+    private fun nodesWithText(text: String) = composeRule.onAllNodesWithText(text, ignoreCase = true).fetchSemanticsNodes().size
 
     private fun song(
         id: String,